B.
Standard Tools and Equipment
(1)
Spring Scale (0-35 pounds)
C.
Procedure
S 216-032
(1)
Examine the internal door handle.
(a)
Close and latch the door.
(b)
Do these steps to make sure the inner door handle moves smoothly and freely. 1) Turn the handle to the open position. 2) Turn the handle to the closed position.
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747-400
MAINTENANCE MANUAL
(c)
Do these steps to make sure the exterior door handle moves smoothly and freely. 1) Turn the handle to the open position. 2) Turn the handle to the closed position.
(d)
Measure the torque on the inner door handle. 1) Attach a spring scale to the handle (or torque wrench) 18 inches from the shaft of the handle mechanism. 2) Set the spring scale to be at zero with all the backlash removed. 3) Slowly open the door with the torque wrench or pull on the spring scale.
4) Write the torque or force from the spring scale and the linear distance the handle moved at the highest value.
NOTE: Do this 3 or 4 times to make sure you get a correct
____
value.
5) Make sure the torque is 220-400 pound-inches (12-22 pounds on the spring scale) and the linear travel is 1.2-2.5 inches (4.5-9.0 degrees of movement of the handle).
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747-400 MAINTENANCE MANUAL
MAIN ENTRY DOOR NO. 1 - REMOVAL/INSTALLATION
____________________________________________
1. General_______
A. This procedure contains two tasks. The first task is the removal of the No. 1 main entry door. The second task is the installation of the No. 1 main entry door.
B. There is more material on the new spare doors to permit the door to be interchangeable. You can cut off the unwanted material during the door installation.
C. The front and aft positions of the door in the opening are not
adjustable, but the vertical and lateral positions are.
D. For door 5 removal/installation, refer to AMM 52-11-09/401.
TASK 52-11-01-004-055
2. Entry Door No. 1 Removal (Fig. 401 and Fig. 402)________________________
A. Special Tools and Equipment
(1)
Maintenance Stand
(2)
OHME65B01836 Sling
(3)
TME65B04308 Dolly, Cargo/Main Entry Door
(4)
11PRE65B00040 Safety Barrier, Entry Door
(5)
12MIT65B00141 Torque Wrench Adapter
B.
References
(1)
AMM 52-11-02/401, Main Entry Door Lining and Insulation
(2)
AMM 52-11-14/401, Main Entry Door Hinge Flaps
(3)
DOOR 1; AIPC 52-11-01, AIPC 52-11-03, Fig. 2, AIPC 52-11-04, Fig. 2, AIPC 52-11-71, Fig. 3
C.
Access
(1)
Access Panel 211AL Panel, Access - Door Maintenance (Door 1, LH) 831L Door - No. 1 Main Entry, LH
D.
Prepare for Removal
(1)
Install the maintenance stand outboard of the door opening.
S 014-003
(2)
Remove the entry door lining (AMM 52-11-02/401).
E.
Procedure
(1)
Close the door.
S 944-058
S 414-009
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